152 lines
3.8 KiB
C++
152 lines
3.8 KiB
C++
// 该范例主要演示使用一个材质下的不同材质实例传递颜色参数绘制三角形，并依赖RenderList中的自动合并功能，让同一材质下所有不同材质实例的对象一次渲染完成。
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#include"VulkanAppFramework.h"
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#include<hgl/math/Math.h>
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#include<hgl/filesystem/FileSystem.h>
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#include<hgl/graph/VKRenderablePrimitiveCreater.h>
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#include<hgl/graph/mtl/Material2DCreateConfig.h>
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#include<hgl/graph/RenderList.h>
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#include<hgl/color/Color.h>
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using namespace hgl;
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using namespace hgl::graph;
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constexpr uint32_t SCREEN_WIDTH=1024;
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constexpr uint32_t SCREEN_HEIGHT=1024;
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constexpr uint32_t VERTEX_COUNT=3;
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constexpr float position_data[VERTEX_COUNT*2]=
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{
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0.0, 0.0,
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-0.1, 0.9,
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0.1, 0.9
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};
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constexpr uint DRAW_OBJECT_COUNT=12;
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#define USE_MATERIAL_FILE true //是否使用材质文件
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class TestApp:public VulkanApplicationFramework
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{
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private:
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SceneNode render_root;
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RenderList * render_list =nullptr;
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Material * material =nullptr;
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struct
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{
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MaterialInstance * mi;
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Renderable * r;
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}render_obj[DRAW_OBJECT_COUNT]{};
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Pipeline * pipeline =nullptr;
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private:
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bool InitMaterial()
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{
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{
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mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"PureColor2D",Prim::Triangles);
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cfg.coordinate_system=CoordinateSystem2D::NDC;
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cfg.local_to_world=true;
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#ifndef USE_MATERIAL_FILE
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AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreatePureColor2D(&cfg); //走程序内置材质创建函数
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material=db->CreateMaterial(mci);
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#else
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material=db->LoadMaterial("Std2D/PureColor2D",&cfg); //走材质文件加载
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#endif//USE_MATERIAL_FILE
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if(!material)
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return(false);
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for(uint i=0;i<DRAW_OBJECT_COUNT;i++)
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{
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render_obj[i].mi=db->CreateMaterialInstance(material);
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if(!render_obj[i].mi)
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return(false);
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Color4f color=GetColor4f((COLOR)(i+int(COLOR::Blue)),1.0);
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render_obj[i].mi->WriteMIData(color); //设置MaterialInstance的数据
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}
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}
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pipeline=CreatePipeline(material,InlinePipeline::Solid2D,Prim::Triangles);
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return pipeline;
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}
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bool InitVBOAndRenderList()
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{
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RenderablePrimitiveCreater rpc(db,"Triangle",VERTEX_COUNT);
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if(!rpc.SetVAB(VAN::Position, VF_V2F, position_data))return(false);
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for(uint i=0;i<DRAW_OBJECT_COUNT;i++)
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{
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render_obj[i].r=rpc.Create(render_obj[i].mi,pipeline);
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if(!render_obj[i].r)
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return(false);
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render_root.CreateSubNode(rotate(deg2rad(double(360/DRAW_OBJECT_COUNT*i)),Vector3f(0,0,1)),render_obj[i].r);
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}
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render_root.RefreshMatrix();
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render_list->Expend(&render_root);
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return(true);
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}
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public:
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~TestApp()
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{
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SAFE_CLEAR(render_list);
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}
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bool Init()
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{
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if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
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return(false);
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render_list=new RenderList(device);
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if(!InitMaterial())
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return(false);
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if(!InitVBOAndRenderList())
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return(false);
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BuildCommandBuffer(render_list);
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return(true);
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}
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void Resize(uint w,uint h)override
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{
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VulkanApplicationFramework::Resize(w,h);
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BuildCommandBuffer(render_list);
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}
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};//class TestApp:public VulkanApplicationFramework
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int main(int,char **)
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{
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TestApp app;
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if(!app.Init())
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return(-1);
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while(app.Run());
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return 0;
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}
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